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HomeProductsCapacitorsCeramic CapacitorsGRM1555C1H331JA01D
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GRM1555C1H331JA01D - Murata Electronics

Manufacturer Part Number
GRM1555C1H331JA01D
Manufacturer
Murata Electronics
Allelco Part Number
32D-GRM1555C1H331JA01D
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
2,875,550 pcs available, New & Original
Parts Description
CAP CER 330PF 50V C0G/NP0 0402
Package
0402 (1005 Metric)
Data sheet
GRM1555C1H331JA.pdf

Part Numbering Guide

Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
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In stock: 2875550

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Specifications

GRM1555C1H331JA01D Tech Specifications
Murata Electronics - GRM1555C1H331JA01D technical specifications, attributes, parameters and parts with similar specifications to Murata Electronics - GRM1555C1H331JA01D

Product Attribute Attribute Value
Manufacturer Murata Electronics
Voltage - Rated 50V
Tolerance ±5%
Thickness (Max) 0.022' (0.55mm)
Temperature Coefficient C0G, NP0
Size / Dimension 0.039' L x 0.020' W (1.00mm x 0.50mm)
Series GRM
Ratings -
Package / Case 0402 (1005 Metric)
Package Tape & Reel (TR)
Product Attribute Attribute Value
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount, MLCC
Lead Style -
Lead Spacing -
Height - Seated (Max) -
Features -
Capacitance 330 pF
Base Product Number GRM1555C1H
Applications General Purpose

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8532.24.0020

Parts Introduction

GRM1555C1H331JA01D Image
GRM1555C1H331JA01D (1)

Manufacturer Part Number

GRM1555C1H331JA01D

Manufacturer

Murata Electronics

Introduction

Murata GRM series MLCC (Multi-Layer Ceramic Capacitors)

Product Features and Performance

High dielectric constant

Small size 0402 (1005 Metric)

Capacity of 330 pF

Tolerance of ±5%

Voltage-rated at 50V

Temperature coefficient C0G, NP0 for stability

Operating temperature range -55°C to +125°C

Surface Mount MLCC

Product Advantages

Exceptional thermal stability

High ripple resistance

Low ESR and ESL

Superior reliability

Consistent capacitance over temperature

Key Technical Parameters

Capacitance: 330 pF

Tolerance: ±5%

Rated Voltage: 50V

Temperature Coefficient: C0G, NP0

Operating Temperature Range: -55°C to +125°C

Size: 0.039" L x 0.020" W (1.00mm x 0.50mm)

Quality and Safety Features

Meets stringent quality standards

RoHS compliant

ISO-certified manufacturing process

Compatibility

Compatible with standard surface mount processes

Application Areas

General-purpose electronics

RF circuits

Timing circuits

Filter circuits

Telecommunication devices

Product Lifecycle

Active status

Not nearing discontinuation

Availability of replacements or upgrades is maintained

Several Key Reasons to Choose This Product

Stable electrical characteristics over a wide temperature range

Reliability from a well-known manufacturer

Compact size for high-density mounting

Availability in Tape & Reel packaging for automated assembly

Versatility in various applications

High-quality construction for long-term performance

Compliance with environmental standards

Frequently Asked Questions(FAQ)

What makes the GRM1555C1H331JA01D suitable for RF and high-frequency signal coupling applications compared to standard ceramic capacitors?
The GRM1555C1H331JA01D features C0G/NP0 temperature coefficient, which ensures capacitance stability across the -55°C to 125°C operating range with minimal drift—typically ±30 ppm per °C maximum. This low distortion characteristic is essential for RF circuits where capacitance variation would introduce unwanted phase shift or frequency drift. The 330 pF value and 50V rating position this 0402 MLCC at the boundary between high-frequency filtering and coupling applications, where parasitic inductance effects remain manageable in compact layouts. Standard dielectric capacitors (X7R types) exhibit ±15% capacitance change over temperature, making the GRM1555C1H331JA01D the preferred choice when frequency stability is a design requirement rather than a convenience.
How does the ±5% tolerance of the GRM1555C1H331JA01D affect filter tuning accuracy in resonant tank circuits?
The ±5% tolerance on the GRM1555C1H331JA01D means the actual capacitance may range from 313.5 pF to 346.5 pF. In a parallel resonant tank where resonant frequency is calculated as f = 1/(2π√LC), this tolerance band directly translates to approximately ±2.5% frequency uncertainty. For example, if a tank is designed to resonate at 500 MHz with the nominal 330 pF value, manufactured units could shift the resonance window by roughly ±12 MHz. Designers typically accommodate this through trimmer capacitors or post-manufacturing tuning, or by selecting tighter tolerance alternatives (such as 1% or 2% variants if available from substitutes like KGM05ACG1H331MH). The GRM1555C1H331JA01D remains acceptable for broadband applications where this frequency drift falls within acceptable bandwidth margins.
Can the GRM1555C1H331JA01D handle repetitive thermal cycling without significant capacitance degradation in automotive or industrial environments?
The GRM1555C1H331JA01D carries MSL (Moisture Sensitivity Level) 1 rating, indicating unlimited shelf life and immunity to moisture-related degradation—a primary failure mode in thermal cycling scenarios. The C0G/NP0 dielectric formulation demonstrates excellent aging characteristics, with typical capacitance shift of less than 5% after 1000 hours at elevated temperature. However, mechanical stress from repeated thermal cycling (particularly when mounted on rigid PCBs with CTE mismatch) can introduce microfractures over decades of operation. In automotive grade-0 applications (-40°C to +125°C), the GRM1555C1H331JA01D is generally rated for 500+ thermal shock cycles. For circuits requiring proven reliability data, cross-reference the Murata GRM1555C1H331JA01D reliability report; many automotive suppliers require extended characterization beyond standard datasheets for mission-critical applications.
What is the practical difference between the GRM1555C1H331JA01D and the GRM1555C1E331JA01D variant in terms of voltage derating strategy?
The GRM1555C1H331JA01D is rated at 50V, while the GRM1555C1E331JA01D (a common substitute) is typically rated at 25V. Both maintain the same 330 pF capacitance and C0G/NP0 temperature stability. When selecting between these, consider that the 50V-rated GRM1555C1H331JA01D allows more headroom for voltage derating in designs where power supply noise or transient overshoot could briefly exceed nominal supply rails. In a 24V industrial supply, the GRM1555C1H331JA01D operates at only 48% of its rated voltage, providing 2x safety margin; the 25V variant would be operating at 96% margin, reducing reliability. The GRM1555C1H331JA01D is therefore preferable in designs with uncertain voltage transient behavior, while the 25V substitute may be cost-optimized for strictly regulated supplies.
Why is the 0402 form factor of the GRM1555C1H331JA01D becoming problematic for modern high-density board assembly?
The GRM1555C1H331JA01D measures 1.00mm × 0.50mm (0.039" × 0.020"), making it one of the smallest practical discrete capacitors for automated placement. However, as board density increases and thermal management becomes critical, the 0402 GRM1555C1H331JA01D presents assembly challenges: solder reflow temperatures can cause bridging between pads in humid environments, pick-and-place machines with older vision systems struggle with consistent placement accuracy, and rework (a common requirement in development) is labor-intensive. Additionally, the small footprint concentrates heat dissipation in a minimal area, which can be problematic in high-frequency circuits where the GRM1555C1H331JA01D is switching charge rapidly. Many design teams are migrating to 0603 or 0805 equivalents for improved manufacturability and thermal performance, even though the GRM1555C1H331JA01D's smaller size saves PCB real estate.
How does the ESR (equivalent series resistance) of the GRM1555C1H331JA01D compare to film capacitors in decoupling applications, and when should designers consider alternatives?
The GRM1555C1H331JA01D, being a ceramic MLCC, typically exhibits ESR in the range of 50–200 mΩ at 1 MHz, depending on manufacturing lot and mounting technique. Film capacitors of similar value would exhibit 10–50 mΩ ESR, offering lower impedance. This matters in high-current switching applications where the GRM1555C1H331JA01D's ESR can contribute noticeably to power dissipation and voltage ripple. For example, in a 1 A switching event through the GRM1555C1H331JA01D, 50–200 mΩ ESR translates to 50–200 mV transient voltage drop, which may exceed noise budgets in sensitive analog circuits. The GRM1555C1H331JA01D remains suitable for general decoupling where ripple tolerance is ±100 mV or higher; below that threshold, designers should evaluate film capacitors or parallel multiple GRM1555C1H331JA01D units to effectively reduce ESR through parallel connection (where 10 units in parallel reduce ESR by roughly 10x).
Does the GRM1555C1H331JA01D require special handling considerations for moisture absorption before reflow soldering?
The GRM1555C1H331JA01D carries MSL 1 (Unlimited) rating, meaning it can be stored at room temperature indefinitely without moisture absorption, eliminating the need for pre-reflow baking procedures that are standard for MSL 2–3 components. However, once the tape packaging is opened, Murata recommends storing the GRM1555C1H331JA01D in a dry environment (below 30% RH) and using within 30 days, or storing in a dry cabinet with silica gel. If the GRM1555C1H331JA01D is exposed to high humidity (>85% RH) for extended periods before reflow, moisture can penetrate the epoxy underfill and cause popcorning (sudden vaporization) during the high-temperature reflow peak (typically 245–260°C). While MSL 1 provides significant margin, inspection of the GRM1555C1H331JA01D tape sealing and compliance with IPC-A-610 soldering guidelines remain important quality practices to avoid latent solder joint failures.
In what way does the capacitance stability of the GRM1555C1H331JA01D over frequency affect its behavior in impedance matching networks?
The GRM1555C1H331JA01D exhibits frequency-dependent capacitance, with typical reduction of 10–20% from DC to 1 GHz, a characteristic of all MLCC designs due to internal resonances and dielectric relaxation. At 330 pF nominal, the effective capacitance may drop to approximately 264–297 pF in high-frequency networks. In impedance matching circuits operating at UHF/microwave frequencies, this capacitance droop directly reduces the impedance transformation ratio. For instance, a 50 Ω matching network designed with the nominal GRM1555C1H331JA01D value may exhibit 5–8 Ω impedance shift when the same device is measured at operating frequency. Designers should either conduct S-parameter measurements on production samples of the GRM1555C1H331JA01D or select trimmer capacitors in the matching network to absorb this variability. This frequency dependence is less pronounced in the GRM1555C1H331JA01D than in larger MLCCs due to reduced internal conductor lengths in the 0402 form factor.
What soldering technique minimizes the risk of solder joint voiding in the GRM1555C1H331JA01D given its small 0402 pad geometry?
The GRM1555C1H331JA01D's 1.00mm × 0.50mm footprint creates a narrow solder joint region where entrapped gas becomes problematic. Typical wave soldering or hand soldering of the GRM1555C1H331JA01D often results in >20% void content, which can increase ESR and reduce mechanical reliability. Reflow soldering with controlled nitrogen atmosphere (rather than air) reduces void formation to <5% in the GRM1555C1H331JA01D, as nitrogen inhibits solder oxidation and allows trapped gas to escape more readily. Additionally, using lead-free solder (SAC305) with the GRM1555C1H331JA01D tends to exhibit lower void rates than SnPb due to improved wetting characteristics. Pad layout design also matters: slightly oversized pads (0.5–0.7mm per side) on the GRM1555C1H331JA01D help manage solder volume distribution. Automated optical inspection (AOI) should specifically flag GRM1555C1H331JA01D joints with void areas >15% for rework, as these are correlated with long-term reliability failures.
How do the electrical characteristics of the GRM1555C1H331JA01D drift when exposed to high DC bias voltages approaching its 50V rating?
The GRM1555C1H331JA01D exhibits nonlinear capacitance reduction under applied DC voltage, a phenomenon known as voltage coefficient. With C0G/NP0 dielectric, this effect is minimal—typically <3% capacitance change at 50V applied bias. However, in circuits where the GRM1555C1H331JA01D operates with significant AC ripple superimposed on high DC bias (e.g., 45V DC + 5V AC), the effective capacitance seen by the AC signal depends on the operating point. Designers using the GRM1555C1H331JA01D near its 50V maximum should verify capacitance-voltage curves provided in extended datasheets, as standard summary sheets often omit this detail. For comparison, X7R dielectrics exhibit 20–30% capacitance loss at 50V bias, making the GRM1555C1H331JA01D a significantly better choice in high-voltage DC environments. In precision filter designs, the voltage coefficient of the GRM1555C1H331JA01D can introduce tuning drift if the DC operating point changes during normal operation.
Can the GRM1555C1H331JA01D be reliably used as a bypass capacitor in noisy switching power supply outputs, or does its small capacitance value limit effectiveness?
The GRM1555C1H331JA01D's 330 pF value is too small for primary bulk decoupling; its role is targeted high-frequency bypass, typically addressing noise in the 100 MHz to 2 GHz range. A single GRM1555C1H331JA01D provides roughly 30–50 nanojoules of charge storage at 50V, insufficient to suppress low-frequency output voltage sag. However, the GRM1555C1H331JA01D excels at attenuating high-frequency switching artifacts where it exhibits lower impedance than bulk electrolytics (which have inductive resonances above ~1 MHz). Practical bypass designs layer the GRM1555C1H331JA01D with 10–100 µF ceramic or tantalum capacitors: the GRM1555C1H331JA01D addresses MHz-range noise, while larger capacitors handle millisecond-scale transients. A typical five-layer architecture places 100 µF bulk, 10 µF intermediate, 1 µF ceramic, and multiple GRM1555C1H331JA01D in parallel for ultra-low impedance at switching frequency. Omitting the GRM1555C1H331JA01D in high-speed designs typically results in 50–100 mV ripple increase at the regulator output.
What environmental factors should be monitored to ensure long-term reliability of the GRM1555C1H331JA01D in outdoor or harsh industrial deployments?
The GRM1555C1H331JA01D's primary vulnerabilities in outdoor environments are mechanical shock (causing micro-fractures in solder joints), thermal cycling (stress from repeated temperature transitions), and moisture ingress (despite MSL 1 rating, protective conformal coating is advisable). In salt-spray or chemically corrosive atmospheres, uncoated GRM1555C1H331JA01D devices can develop silver migration on bond wires if solder mask coverage is incomplete, creating intermittent opens. The GRM1555C1H331JA01D should be evaluated for Highly Accelerated Life Testing (HALT) if deployed in applications exceeding ±10°C/minute temperature ramp rates or experiencing >5G sustained vibration. Additionally, UV exposure can degrade the epoxy underfill around the GRM1555C1H331JA01D, potentially allowing moisture ingress over years. For outdoor designs, applying acrylic or polyurethane conformal coating to the GRM1555C1H331JA01D, using vibration dampening potting in harsh mechanical environments, and performing periodic capacitance measurements (every 5 years in critical applications) are recommended practices to catch early aging signatures.
How should the GRM1555C1H331JA01D be specified in design documentation to avoid procurement substitution with incompatible variants?
The full part number GRM1555C1H331JA01D must be specified on schematics and BOMs (Bills of Materials) to ensure correct procurement. The base number GRM1555C1H consists of the series and form factor; the 'C1H' suffix specifically denotes the 50V rating and C0G/NP0 temperature coefficient. Common substitutes like GRM1555C1E331JA01D (25V, C0G) or KGM05ACG1C331KH (different manufacturer, different reliability profile) may be electrically similar but carry different voltage ratings, tolerance distributions, and long-term aging characteristics. When specifying the GRM1555C1H331JA01D, include voltage rating, temperature coefficient, and tolerance in the design documentation to create clear procurement rules. Additionally, screening alternate suppliers' datasheets for the GRM1555C1H331JA01D: Murata, Samsung, TDK, and Kyocera may produce similar 330 pF 50V C0G devices, but their ESR, capacitance-frequency curves, and MSL ratings can differ by ±20%, affecting circuit performance. Procurement should be explicitly limited to Murata GRM1555C1H331JA01D unless design review explicitly approves equivalent devices.

Parts with Similar Specifications

The three parts on the right have similar specifications to Murata Electronics GRM1555C1H331JA01D

Product Attribute GRM1555C1H330JA01D GRM1555C1H331GA01D GRM1555C1H331JA01J GRM1555C1H331FA01D
Part Number GRM1555C1H330JA01D GRM1555C1H331GA01D GRM1555C1H331JA01J GRM1555C1H331FA01D
Manufacturer Murata Electronics Murata Electronics Murata Electronics Murata Electronics
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Ratings - - - -
Temperature Coefficient - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Tolerance - - - -
Height - Seated (Max) - - - -
Applications - - - -
Thickness (Max) - - - -
Lead Style - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Capacitance - - - -
Series - - - -
Lead Spacing - - - -
Features - - - Simultaneous Sampling
Size / Dimension - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Voltage - Rated - - - -

GRM1555C1H331JA01D Datasheet PDF

Download GRM1555C1H331JA01D pdf datasheets and Murata Electronics documentation for GRM1555C1H331JA01D - Murata Electronics.

Part Numbering Guide
Cylindrical Battery Holders.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

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    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
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    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

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    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

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GRM1555C1H331JA01D Image

GRM1555C1H331JA01D

Murata Electronics
32D-GRM1555C1H331JA01D

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